Price: $45.99
(as of Jun 22, 2025 15:47:57 UTC – Details)
Product Description
1 About Carbon Monoxide(CO)
2 How to Test CT-300
3 Potential Source of CO
4 Carbon Monoxide Poisoning
How do I use the device correctly for carbon monoxide detection?
Step1: Turn on the CT-300 in a fresh air environment (e.g., a well-ventilated outdoor space) and wait for it to warm up.
Step2: Approach the CO source for detection. Detecting from a distance may cause CO to disperse, leading to unstable readings.
Why do I smell a carbon monoxide leak, but the CT-300 doesn’t detect anything?
The smell you notice is unlikely to originate from carbon monoxide (CO), as CO is colorless and odorless. The odor may be caused by another gas, such as a combustible gas. We recommend using a combustible gas detector to identify the source.
Why can’t carbon monoxide be detected in a closed room?
When there is no significant source of combustion indoors, even in a closed room, carbon monoxide will not be generated. The gases exhaled by humans contain carbon dioxide (CO2), which is a different gas from carbon monoxide (CO).
Why can’t carbon monoxide be detected even when there is a combustion source present?
Not all combustion produces CO gas, only incomplete combustion does, which is characterized by a red/yellow flame in most cases. Also, ensure proximity during measurement to prevent gas dispersion, which may lead to undetectable concentrations.
Carbon Monoxide Detector: TopTes CT-300 is an ideal portable CO tester to help you detect CO gas concentrations timely and accurately, reducing the risk of CO poisoning and protecting your life. It is a must-have tool for homeowners, drivers, campers, DIY-ers, tourists, etc
Swift & Precise Measurement: The CT-300, with an advanced electrochemical sensor head, swiftly detects CO levels from 0-5000 ppm. Its sensitivity ensures early warnings, allowing timely actions to prevent health risks. Accurate readings empower quick decisions, promoting safety and well-being. Versatile and portable, it guards against CO in various settings, ensuring peace of mind
Visual & Audible Alarm: The travel CO detector uses both visual and audible alarms. When the concentration of CO reaches the alarm threshold, the screen changes color and emits an urgent alarm sound to alert you of the presence of CO gas in your surroundings, allowing you to promptly detect the danger, protect yourself
User-Friendly Functions: With high-quality ABS and PC material and anti-slip edge texture, CT-300 is durable and portable; It can be used for 40 hours with new batteries; Low-power indicator will remind you of time to change batteries; It will automatically switch off when not in operation or when no gas is detected within 10 minutes to save power (can be canceled); Backlit screen for easy viewing, adaptable to dim environments
Correct detection method: You can detect whether the CT-300 is working properly by detecting smoke from cigarettes, or burning organic matter (paper, etc.) in a sealed container. You will receive CT-300 Carbon Monoxide Detector, Protective Case, AAA Batteries, User Manual
Customers say
Customers find the carbon monoxide detector easy to use and worth its price, providing peace of mind and potentially saving lives. The functionality is positive, with one customer noting it works well near gas water heaters. However, customers disagree on the device’s accuracy and detection capabilities, with some reporting it fails to detect anything. Moreover, the build quality receives mixed feedback, with some finding it well-made while others describe it as unreliable.
